Portable microwave



FIG. 1 is a perspective front view of the portable microwave, showing my new design;

FIG. 2 is a front side view thereof;

FIG. 3 is a back side view thereof;

FIG. 4 is a right side view with the left side view being a mirror image thereof;

FIG. 5 is a top side view thereof; and,

FIG. 6 is a bottom side view thereof.

The dashed lines are intended to show boundary areas and form no part of the claimed design. 

CLAIM The ornamental design for a portable microwave, as shown and described. 